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Finding the Fourth Proportional to 4,455.88, 6,684.90 and 1,377.88

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Solution

The fourth proportional to 4,455.88, 6,684.90 and 1,377.88 is: 2,067.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,455.88 : 6,684.90 = 1,377.88 : x
  2. Step 2: Convert to fraction form
    4,455.88/6,684.90 = 1,377.88/x
  3. Step 3: Cross multiply
    4,455.88x = 6,684.90 × 1,377.88
  4. Step 4: Simplify right side
    4,455.88x = 9,210,990.01
  5. Step 5: Solve for x
    x = 9,210,990.01/4,455.88
  6. Step 6: Final answer
    x = 2,067.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.